Photocatalytic activity of TiO2 nanomaterials

被引：0

作者：

Song, Yo-Seung ^{[1
]}

Son, Siwon ^{[2
]}

Lee, Deuk Yong ^{[2
]}

Lee, Myung-Hyun ^{[3
]}

Kim, Bae-Yeon ^{[4
]}

机构：

[1] Korea Aviat Univ, Dept Mat Engn, Goyang 10540, South Korea

[2] Daelim Univ, Dept Biomed Engn, Anyang 13916, South Korea

[3] KICET, Div Energy & Environm, Jinju 52851, South Korea

[4] Incheon Natl Univ, Dept Mat Sci & Engn, Incheon 22012, South Korea

来源：

JOURNAL OF CERAMIC PROCESSING RESEARCH | 2016年 / 17卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

TiO2; Nb-TiO2; Nanofiber; nanotube; Photocatalytic activity; Methylene blue; BAND-GAP ENERGY; CRYSTAL-STRUCTURE; NANOFIBERS; MORPHOLOGY; ERBIUM;

D O I：

暂无

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

To investigate the effect of calcination temperature on crystal structure, phase, and photocatalytic activity of methylene blue (MB), TiO2 nanofibers were prepared through sol-gel derived electrospinning, calcination from 500 degrees C to 650 degrees C, and subsequent mechanical grinding. XRD results indicated that TiO2 nanofibers calcined at 500 degrees C is composed of anatase TiO2 only. However, mixed crystals of anatase and rutile were observed for TiO2 calcined above 550 degrees C. Higher MB degradation was observed for the TiO2 nanofibers calcined at 550 degrees C most likely due to the mixed crystals and large surface area. Enhanced photocatalytic activity was achieved for TiO2 and Nb-TiO2 nanotubes due to the synergic combinations of mixed crystals and larger specific surface area.

引用

页码：1197 / 1201

页数：5

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